Added empty UI for showing search results

Hooked it up in the plugin.xml so that it will always be visible.
Right now I target the Java Perspective, but I'll change that
once I figure out what the ID for the Scala perspective is.
The results view can now display text

Currently it just shows some sample data. Need to hook it up to the
actual search results.
The results view now display real occurrences

Wired the code together such that it now actually shows the
occurrences of a method in the results view after invoking the
find occurrence of method action.

I have a build problem right now when I use org.eclipse.ui.ide.IDE
but I commit this so I might be able to get some help